chemistry
posted by Anonymous .
Which 0.10M solution below has the lowest pH?
a) NaCl b) KCN c) LiF d) RbClO e) all have the same pH

a. neither Na^+ nor Cl^ are hydrolyzed; therefore, the pH is just that of pure H2O which is pH = 7.
b. KCN the CN^ is hydrolyzed.
CN^ + HOH ==> HCN + OH^ so you know it will be basic. You can calculate the actual pH but that isn't necessary.
c. LiF the F^ is hydrolyzed.
F^ + HOH ==> HF + OH^ so you know this will be basic. It isn't necessary to calculate pH but you could do so.
d. RbClO. ClO^ is hydrolyzed.
ClO^ + HOH ==> HClO + OH^ and this one will be basic. You can calculate pH of this solution, also, but it isn't necessary.
So which has the lowest pH (the most acidicleast basic)?
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